This is a fairly basic question but I did not find an answer to it anywhere online:

Suppose I have the following data frame (a and b are column names): a | b --------------- 1 | [x1,x2,x3,x4] # this is an array Now I explode column b and logically get: a | b --------------- 1 | x1 1 | x2 1 | x3 1 | x4 Are the values in the adjacent columns *actually* duplicated?